Table A17. Analyte concentration (pg/mL) in headspace vapor
above clay containing buried U.S. military-grade TNT, at 4C,
and three moisture levels.
Air dry
15% moisture
30% moisture
Sample
Rep A
Rep B
Rep A
Rep B
Rep A
Rep B
12 days
1,3-DNB
<d
<d
<d
<d
<d
not done
1,2-DNB
<d
<d
<d
<d
<d
2,5-DNT
<d
<d
<d
<d
<d
2,4-DNT
<d
<d
1.06
0.532
0.837
3,5-DNT
<d
<d
<d
<d
<d
1,3,5-TNB
<d
<d
<d
<d
<d
2,4,6-TNT
<d
<d
<d
<d
<d
19 days
1,3-DNB
<d
<d
<d
0.075
0.068
0.092
1,2-DNB
<d
<d
0.023
0.058
0.027
0.045
2,5-DNT
<d
<d
<d
<d
<d
<d
2,4-DNT
0.029
0.027
0.036
0.047
0.050
0.075
3,5-DNT
<d
<d
<d
<d
<d
<d
1,3,5-TNB
<d
<d
<d
<d
<d
<d
2,4,6-TNT
<d
<d
<d
<d
<d
<d
35 days
1,3-DNB
<d
<d
0.434
0.569
0.867
0.413
1,2-DNB
<d
<d
0.124
0.185
0.211
0.108
2,5-DNT
<d
<d
<d
<d
<d
<d
2,4-DNT
0.024
0.037
0.065
0.073
0.470
0.232
3,5-DNT
<d
<d
0.055
0.049
0.077
0.088
1,3,5-TNB
<d
<d
<d
<d
<d
<d
2,4,6-TNT
<d
<d
<d
<d
<d
<d
67 days
1,3-DNB
<d
<d
0.941
1.30
0.591
0.310
1,2-DNB
<d
<d
0.139
0.216
0.165
0.089
2,5-DNT
<d
<d
<d
0.007
0.012
<d
2,4-DNT
0.038
0.029
0.386
0.477
1.51
0.929
3,5-DNT
<d
<d
0.115
0.134
0.217
0.124
1,3,5-TNB
<d
<d
<d
<d
<d
<d
2,4,6-TNT
<d
<d
<d
0.012
0.018
0.014
111 days
1,3-DNB
not done
<d
not done
1.34
not done
0.100
1,2-DNB
<d
0.169
0.070
2,5-DNT
<d
0.009
0.008
2,4-DNT
<d
1.00
1.13
3,5-DNT
<d
0.142
0.131
1,3,5-TNB
<d
<d
<d
2,4,6-TNT
<d
0.025
0.030
173 days
1,3-DNB
not done
<d
not done not done not done not done
1,2-DNB
<d
2,5-DNT
<d
2,4-DNT
0.010
3,5-DNT
<d
1,3,5-TNB
<d
2,4,6-TNT
0.007
<d Values were less than the detection limit.
39
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